WO2010041521A1 - Electrical connection box - Google Patents

Electrical connection box Download PDF

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Publication number
WO2010041521A1
WO2010041521A1 PCT/JP2009/064648 JP2009064648W WO2010041521A1 WO 2010041521 A1 WO2010041521 A1 WO 2010041521A1 JP 2009064648 W JP2009064648 W JP 2009064648W WO 2010041521 A1 WO2010041521 A1 WO 2010041521A1
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WO
WIPO (PCT)
Prior art keywords
bus bar
cable
cable connection
cassette block
connection portion
Prior art date
Application number
PCT/JP2009/064648
Other languages
French (fr)
Japanese (ja)
Inventor
正裕 赤堀
雅利 江川
誠 須野原
洋行 若松
政広 小室
Original Assignee
トヨタ車体株式会社
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Publication date
Application filed by トヨタ車体株式会社 filed Critical トヨタ車体株式会社
Publication of WO2010041521A1 publication Critical patent/WO2010041521A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/026—Multiple connections subassemblies

Definitions

  • the present invention relates to an electrical junction box mounted on a vehicle or the like as a moving body.
  • An automobile as a moving body is generally equipped with various electronic devices such as lamps such as head lamps and tail lamps, motors such as starter motors and motors for air conditioners.
  • various electronic devices such as lamps such as head lamps and tail lamps, motors such as starter motors and motors for air conditioners.
  • automobiles have junction blocks arranged at appropriate locations.
  • the junction block is configured by integrating various electric circuit units such as a large number of fuses and relays.
  • a junction block may have a fuse, a relay, a bus bar, etc., it is also called a fuse block, a relay box, or an electrical connection box generically.
  • a fuse block a fuse block, a relay box, or an electrical connection box generically.
  • the above-described fuse block, relay box, and junction block are collectively referred to as an electric connection box (for example, refer to Patent Document 1).
  • the electrical junction box includes: a box body forming an outer shell; a cassette block attached to the box body and to which a plurality of electrical components are attached; and a plurality of electrical components housed in the cassette block and attached to the cassette block.
  • a conductive bus bar or the like for electrically connecting each other is provided.
  • a plurality of the cassette blocks are provided, and the above-described plurality of electrical components (relays, fuses, etc.) are attached to the upper surfaces of the cassette blocks. Moreover, the wire harness provided in the terminal of the wire harness routed by the motor vehicle mentioned above is attached to the lower surface of each cassette block.
  • the bus bar is obtained by pressing a conductive sheet metal.
  • the bus bar includes a battery connection portion to which a battery as a power source is connected, a component connection portion to be connected to the electrical component, and a harness connection portion to be connected to the wire harness.
  • the bus bar electrically connects the battery, the electrical component, and the wire harness according to a predetermined pattern, branches the power from the battery, and is mounted on the automobile via the electrical component and the wire harness. To each electronic device.
  • the above-described electrical junction box is provided with a cable connection portion for supplying the power of the external power source to the above-described electronic device when the battery power is substantially zero, that is, when the so-called battery rises.
  • the alligator clip attached to the booster cable connected to the external power source described above is attached to the cable connecting portion.
  • the cable connecting portion is provided on a terminal fitting connected to the battery and attached to the bus bar, that is, the cassette block, and is formed in a plate shape standing from the terminal fitting.
  • an object of the present invention is to provide an electrical junction box capable of smoothly radiating heat generated in a bus bar to the outside.
  • an electrical junction box includes a cassette block to which a plurality of electrical components are attached, a cassette block attached to the cassette block, and the plurality of electrical components to each other.
  • an electrical connection box comprising: a conductive bus bar for electrically connecting; and a cable connection portion that is disposed outside the cassette block and connected to a booster cable, the cable connection portion includes: It is formed integrally with the bus bar.
  • the electric junction box according to the first aspect wherein a plurality of concave holes are formed in the cable connection portion from the surface of the cable connection portion. It is said.
  • the electrical connection box of the present invention according to claim 3 is the electrical connection box according to claim 2, wherein the cable connection portion includes a connection plate portion in which a plurality of the holes are formed, and both edges of the connection plate portion. And a pair of parallel plate portions that are bent in parallel with each other and are formed in a U-shaped cross section.
  • the electrical junction box of the present invention according to claim 4 is the electrical junction box according to claim 3, wherein the cassette block includes a connection support portion that overlaps an inner surface of the cable connection portion.
  • the bus bar is formed integrally with the cable connecting portion that is exposed to the outside, the heat generated in the bus bar is transmitted to the cable connecting portion. , Will be exposed to the outside.
  • the cassette block since the cassette block includes the connection support portion that overlaps the inner surface of the cable connection portion, the cable connection portion can be supported by the connection support portion.
  • the heat generated in the bus bar is transmitted to the cable connecting portion and exposed to the outside, and therefore the heat generated in the bus bar is radiated to the outside by the cable connecting portion. can do.
  • the teeth of the conductive clamp are caught in the hole. It is possible to prevent the conductive clamp connected to the terminal from falling off.
  • the present invention described in claim 3 is formed in a U-shaped cross section to ensure the rigidity of the cable connecting portion, the necessary rigidity of the cable connecting portion can be obtained even if the thickness of the cable connecting portion is suppressed. It can be secured. Therefore, it is possible to reduce the base material constituting the cable connection portion, that is, the bus bar, and to reduce the weight of the cable connection portion, that is, the bus bar.
  • connection support portion of the cassette block supports the cable connection portion, even if the thickness of the cable connection portion is suppressed, the cable connection portion can be prevented from being unexpectedly damaged. . Therefore, it is possible to further reduce the base material constituting the cable connection portion, that is, the bus bar, and to further reduce the weight of the cable connection portion, that is, the bus bar.
  • FIG. 1 It is a perspective view which shows a part of cassette block shown by FIG. 1 in a cross section. It is a perspective view which shows a part of cassette block shown by FIG. 2 in a cross section. It is a perspective view which shows the state which the electric clamp of the booster cable clamped the cable connection part of the cassette block shown by FIG. It is a perspective view which expands and shows the IV section in FIG. It is explanatory drawing which shows the whole booster cable shown by FIG.
  • the electrical junction box 1 shown in FIG. 1 according to the present embodiment is mounted on an automobile as a moving body.
  • the electrical connection box 1 includes a box body, a cassette block 2 and a bus bar 3 (not shown).
  • the box main body includes a box-shaped main body, an upper cover, and a lower cover.
  • the main body, the upper cover, and the lower cover are each made of an insulating synthetic resin, and are molded by a well-known injection molding.
  • the main body 12 is formed in a cylindrical shape by a plurality of outer walls that are continuous with each other. Further, the main body portion is provided with a partition wall for partitioning the main body portion.
  • the upper cover and the lower cover are attached to the box body and cover the upper surface and the mask of the box body.
  • the cassette block 2 is formed in a box shape that can be accommodated in the main body.
  • the cassette block 2 is accommodated in the main body through an opening on the lower side of the main body.
  • a connector of a wire harness (not shown) is fitted on a lower surface (hereinafter referred to as a lower surface) of the cassette block 2 in FIG.
  • the wire harness of course, includes a plurality of electric wires and a connector attached to the end of the electric wires.
  • a relay 4 as an electrical component, a fuse (not shown), and the like are mounted on the upper surface (hereinafter referred to as the upper surface) 2a of the cassette block 2 in FIG.
  • a terminal mounting portion 5 is provided on the upper surface 2 a of the cassette block 2.
  • the terminal mounting portion 5 includes a nut (not shown) embedded in the upper surface 2 a of the cassette block 2, a sheet metal member 6 stacked on the nut, and a bolt 7 screwed into the nut through a through hole provided in the sheet metal member 6. And has.
  • the terminal attachment portion 5 is provided on the sheet metal member 6 with a notch provided on the electric contact portion and a notch provided on the electric contact portion of the terminal fitting connected to the battery as a power source on the sheet metal member 6.
  • connection support portion 22 is formed in a band plate shape standing from the upper surface 2 a of the cassette block 2.
  • the connection support part 22 overlaps the inner surface of the cable connection part 9 and supports the cable connection part 9.
  • the inner surface of the cable connection portion 9 is configured by a mutually facing surface of a pair of parallel plate portions 21 described later and a surface positioned between the pair of parallel plate portions 21 of the connection plate portion 20 described later. Yes.
  • the bus bar 3 is obtained by punching or bending a conductive sheet metal.
  • the bus bar 3 is inserted into a slit provided in the cassette block 2 from below in FIG.
  • the bus bar 3 is integrally provided with a plurality of terminal portions 8 and one cable connection portion 9.
  • Terminals 8 such as the relays 4 and fuses described above are attached.
  • the bus bar 3 is electrically connected between the relays 4 and the fuses, that is, a plurality of electrical components, by attaching the terminals such as the relay 4 and the fuses described above to the terminal portion 8.
  • the bus bar 3 is also connected to the terminal fitting and the sheet metal member of the terminal mounting portion 5 in the connector of the wire harness described above.
  • the bus bar 3 connects the terminal fittings of the connector of the wire harness, the electrical components such as the relay 4 and the fuse, and the sheet metal member 6 of the terminal mounting portion 5 described above.
  • the cassette block 2 electrically connects the above-described electrical components such as the relay 4 and the fuse, the electric wire of the wire harness, and the battery via the above-described terminal mounting portion 5 according to a predetermined pattern. In this way, the bus bar 3 supplies power from the power source to various electronic devices mounted on the automobile via the relay 4 and the fuse.
  • the cable connecting portion 9 is erected from one end of the bus bar 3 on the near side in FIG. As shown in FIG. 1, when the bus bar 3 is attached to the cassette block 2, the cable connecting portion 9 is exposed to the outside of the cassette block 2 from the upper surface 2a of the cassette block 2, and as shown in FIG. It closely overlaps the outside of the connection support part 2.
  • the cable connecting portion 9 is formed in a flat plate shape standing from one end of the bus bar 3 on the near side in FIG. 2 and has a connecting plate portion 20 formed with a plurality of through holes 17 as holes, A pair of parallel plate portions 21 that are bent from both edges in the width direction of the portion 20 and provided in parallel to each other are integrally provided, and formed in a U-shaped cross section.
  • the through-hole 17 is formed in a concave shape from the surface of the cable connection portion 9, and penetrates the cable connection portion 9 in the illustrated example.
  • the cable connection portion 9 is connected to the booster cable 10 by sandwiching the connection plate portion 20 with a conductive clamp 11 (described later) provided at the end of the booster cable 10.
  • a conductive clamp 11 (described later) provided at the end of the booster cable 10.
  • the teeth 16 of the conductive clamps 11 enter the through holes 17.
  • the booster cable 10 has conductive clamps 11 attached to both terminals.
  • the conductive clamp 11 includes a pair of sandwiching pieces 12, a pin 13 that connects the pair of sandwiching pieces 12 in a rotatable manner, and a spring (not shown).
  • Each of the pair of sandwiching pieces 12 includes a grip portion 14 made of an insulating material and a blade portion 15 made of a conductive member.
  • the pinching pieces 12 are rotatably connected by pins 13 so that the grip portions 14, that is, the blade portions 15 are in contact with each other.
  • the blade portion 15 is provided with a plurality of teeth 16 protruding in a direction in which the sandwiching pieces 12 approach each other.
  • the spring biases the pair of sandwich pieces 12 in a direction in which the blade portions 15 approach each other and the grip portions 14 separate from each other.
  • the booster cable 10 when the battery power is substantially zero, that is, when the so-called battery is raised, one conductive clamp 11 holds the connection plate portion 20 of the cable connection portion 9 as shown in FIG.
  • the conductive clamp 11 holds the terminal of the external power supply.
  • the booster cable 10 supplies the electric power of the external power supply mentioned above to the various electronic devices mounted in the motor vehicle connected to the wire harness.
  • the electrical junction box 1 having the above-described configuration is assembled as follows. First, each cassette block 2 is attached to the main body of the box body. Then, electrical components such as a relay 4 and a fuse are mounted on the upper surface 2a of each cassette block 2, and a wire harness connector is fitted on the lower surface.
  • the electric junction box 1 is mounted on a car.
  • the electrical junction box 1 electrically connects the automobile electronic device to which the wire harness is connected, the electrical components such as the relay 4 and the fuse, and the battery described above according to a predetermined pattern.
  • the bus bar 3 is formed integrally with the cable connection portion 9 that is disposed so as to be exposed to the outside, the heat generated in the bus bar 3 is transmitted to the cable connection portion 9 and exposed to the outside. It will be. Therefore, the heat generated in the bus bar 3 can be radiated to the outside by the cable connecting portion 9.
  • the rigidity of the cable connection portion 9 is ensured by forming a U-shaped cross section, the necessary rigidity of the cable connection portion 9 can be ensured even if the thickness of the cable connection portion 9 is suppressed. Therefore, it is possible to reduce the base material constituting the cable connection portion 9, that is, the bus bar 3, and to reduce the weight of the cable connection portion 9, that is, the bus bar 3.
  • the connection support portion 22 of the cassette block 2 supports the cable connection portion 9. For this reason, even if the thickness of the cable connection portion 9 is suppressed, the cable connection portion / can be prevented from being unexpectedly damaged. Therefore, it is possible to further reduce the base material constituting the cable connection portion 9, that is, the bus bar 3, and to further reduce the weight of the cable connection portion 9, that is, the bus bar 3.
  • the through hole 17 is used as the hole.
  • a concave portion that is concave from the surface of the cable connection portion 9 may be used as the hole. That is, of course, it is good even if the hole does not penetrate the cable connecting portion 9.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

An electrical connection box capable of smoothly outwardly dissipating heat generated in a bus bar. An electrical connection box (1) is provided with a cassette block (2) to which relays (4) are mounted, an electrically conductive bus bar (3) mounted to the cassette block (2) and electrically connecting the relays (4) to each other, and a cable connection section (9) provided so as to be exposed to the outside of the cassette block (2) and to which a booster cable (10) is connected.  The cable connection section (9) is formed integrally with the bus bar (3).  Through-holes (17) are formed in the cable connection section (9).

Description

電気接続箱Electrical junction box
　本発明は、移動体としての自動車などに搭載される電気接続箱に関する。 The present invention relates to an electrical junction box mounted on a vehicle or the like as a moving body.
　移動体としての自動車には、一般に、ヘッドランプ及びテールランプなどのランプ類、スタータモータ及びエアコンディショナ用のモータ等のモータ類等の多種多様な電子機器が搭載されている。これら電子機器に電力を供給するために、自動車は、ジャンクションブロックを適宜箇所に配置している。ジャンクションブロックは、多数のヒューズやリレー等の各種の電気回路ユニットを集約して構成されている。 2. Description of the Related Art An automobile as a moving body is generally equipped with various electronic devices such as lamps such as head lamps and tail lamps, motors such as starter motors and motors for air conditioners. In order to supply electric power to these electronic devices, automobiles have junction blocks arranged at appropriate locations. The junction block is configured by integrating various electric circuit units such as a large number of fuses and relays.
　なお、ジャンクションブロックは、ヒューズ、リレーやバスバーなどを有することもあることから、ヒューズブロック、リレーボックス、又は総称して電気接続箱とも呼ばれる。本明細書では、前述したヒューズブロック、リレーボックスやジャンクションブロックを、総称して以下電気接続箱（例えば、特許文献１参照）と呼ぶ。 In addition, since a junction block may have a fuse, a relay, a bus bar, etc., it is also called a fuse block, a relay box, or an electrical connection box generically. In the present specification, the above-described fuse block, relay box, and junction block are collectively referred to as an electric connection box (for example, refer to Patent Document 1).
　電気接続箱は、外郭を形成する箱本体と、前記箱本体に取り付けられかつ複数の電気部品が取り付けられるカセットブロックと、前記カセットブロックに収容されて当該カセットブロックに取り付けられかつ前記複数の電気部品同士を電気的に接続する導電性のバスバなどを備えている。 The electrical junction box includes: a box body forming an outer shell; a cassette block attached to the box body and to which a plurality of electrical components are attached; and a plurality of electrical components housed in the cassette block and attached to the cassette block. A conductive bus bar or the like for electrically connecting each other is provided.
　前記カセットブロックは、複数設けられ、かつそれぞれの上面に前述した複数の電気部品（リレーやヒューズなど）が取り付けられる。また、カセットブロックそれぞれの下面には、前述した自動車に配索されるワイヤハーネスの端末に設けられたワイヤハーネスが取り付けられる。 A plurality of the cassette blocks are provided, and the above-described plurality of electrical components (relays, fuses, etc.) are attached to the upper surfaces of the cassette blocks. Moreover, the wire harness provided in the terminal of the wire harness routed by the motor vehicle mentioned above is attached to the lower surface of each cassette block.
　バスバは、導電性の板金にプレス加工などが施されて、得られる。バスバは、電源としてのバッテリが接続されるバッテリ接続部と、前記電気部品と接続される部品接続部と、前記ワイヤハーネスと接続されるハーネス接続部とを備えている。バスバは、前記バッテリと電気部品とワイヤハーネスとを予め定められたパターンにしたがって電気的に接続して、前記バッテリからの電力を分岐して、前記電気部品、ワイヤハーネスを介して自動車に搭載される各電子機器に供給する。 The bus bar is obtained by pressing a conductive sheet metal. The bus bar includes a battery connection portion to which a battery as a power source is connected, a component connection portion to be connected to the electrical component, and a harness connection portion to be connected to the wire harness. The bus bar electrically connects the battery, the electrical component, and the wire harness according to a predetermined pattern, branches the power from the battery, and is mounted on the automobile via the electrical component and the wire harness. To each electronic device.
　また、前述した電気接続箱には、バッテリの電力が略零即ち所謂バッテリが上がった際に、外部の電源の電力を前述した電子機器に供給するためのケーブル接続部が設けられている。ケーブル接続部には、前述した外部の電源に接続されたブースタケーブルに取り付けられたワニ口クリップが取り付けられる。ケーブル接続部は、前記バッテリに接続されて前記バスバ即ちカセットブロックに取り付けられる端子金具に設けられており、当該端子金具から立設した板状に形成されている。 In addition, the above-described electrical junction box is provided with a cable connection portion for supplying the power of the external power source to the above-described electronic device when the battery power is substantially zero, that is, when the so-called battery rises. The alligator clip attached to the booster cable connected to the external power source described above is attached to the cable connecting portion. The cable connecting portion is provided on a terminal fitting connected to the battery and attached to the bus bar, that is, the cassette block, and is formed in a plate shape standing from the terminal fitting.
特開２００８－１２３９２８JP 2008-123928 A
　前述した特許文献１等に記載された電気接続箱は、電源からの電力をバスバにより分岐するので、当該バスバを流れる電力値が大きく、発熱量が増加する傾向であった。当該バスバがカセットブロック内に収容されるので、当該バスバに生じた熱がカセットブロック内即ち箱本体内にこもってしまい望ましくない。 In the electrical junction box described in Patent Document 1 and the like described above, since the power from the power source is branched by the bus bar, the power value flowing through the bus bar is large and the amount of heat generation tends to increase. Since the bus bar is accommodated in the cassette block, heat generated in the bus bar is trapped in the cassette block, that is, in the box body, which is not desirable.
　したがって、本発明の目的は、バスバに生じた熱をスムーズに外部に放熱することが可能な電気接続箱を提供することにある。 Therefore, an object of the present invention is to provide an electrical junction box capable of smoothly radiating heat generated in a bus bar to the outside.
　前記課題を解決し目的を達成するために、請求項１に記載の本発明の電気接続箱は、複数の電気部品が取り付けられるカセットブロックと、前記カセットブロックに取り付けられかつ前記複数の電気部品同士を電気的に接続する導電性のバスバと、前記カセットブロックの外側に露出した状態で配置されかつブースタケーブルが接続されるケーブル接続部と、を備えた電気接続箱において、前記ケーブル接続部が、前記バスバと一体に形成されたことを特徴としている。 In order to solve the above-mentioned problems and achieve the object, an electrical junction box according to the present invention includes a cassette block to which a plurality of electrical components are attached, a cassette block attached to the cassette block, and the plurality of electrical components to each other. In an electrical connection box comprising: a conductive bus bar for electrically connecting; and a cable connection portion that is disposed outside the cassette block and connected to a booster cable, the cable connection portion includes: It is formed integrally with the bus bar.
　請求項２に記載の本発明の電気接続箱は、請求項１に記載の電気接続箱において、前記ケーブル接続部に、当該ケーブル接続部の表面から凹の穴が複数形成されていることを特徴としている。 According to a second aspect of the present invention, there is provided the electric junction box according to the first aspect, wherein a plurality of concave holes are formed in the cable connection portion from the surface of the cable connection portion. It is said.
　請求項３に記載の本発明の電気接続箱は、請求項２に記載の電気接続箱において、前記ケーブル接続部は、前記穴が複数形成された接続板部と、この接続板部の両縁から折り曲げられて互いに平行な一対の平行板部と、を備えて、断面コ字形に形成されていることを特徴としている。 The electrical connection box of the present invention according to claim 3 is the electrical connection box according to claim 2, wherein the cable connection portion includes a connection plate portion in which a plurality of the holes are formed, and both edges of the connection plate portion. And a pair of parallel plate portions that are bent in parallel with each other and are formed in a U-shaped cross section.
　請求項４に記載の本発明の電気接続箱は、請求項３に記載の電気接続箱において、前記カセットブロックは、前記ケーブル接続部の内面に重なる接続支持部を備えたことを特徴としている。 The electrical junction box of the present invention according to claim 4 is the electrical junction box according to claim 3, wherein the cassette block includes a connection support portion that overlaps an inner surface of the cable connection portion.
　請求項１に記載した本発明の電気接続箱によれば、バスバが外部に露出して配置されるケーブル接続部と一体に形成されているので、このバスバに生じた熱がケーブル接続部に伝わり、外部にさらされることとなる。 According to the electrical junction box of the present invention as set forth in claim 1, since the bus bar is formed integrally with the cable connecting portion that is exposed to the outside, the heat generated in the bus bar is transmitted to the cable connecting portion. , Will be exposed to the outside.
　請求項２に記載した本発明の電気接続箱によれば、ケーブル接続部に穴が複数設けられているので、このケーブル接続部にワニ型の導電クランプなどを取り付けた際に、当該導電クランプの歯などが穴内に引っ掛かることとなる。 According to the electrical connection box of the present invention described in claim 2, since a plurality of holes are provided in the cable connection portion, when a crocodile type conductive clamp or the like is attached to the cable connection portion, Teeth etc. will be caught in the hole.
　請求項３に記載した本発明の電気接続箱によれば、断面コ字形に形成しているので、ケーブル接続部の剛性を確保することができる。 According to the electrical junction box of the present invention described in claim 3, since it is formed in a U-shaped cross section, the rigidity of the cable connection portion can be ensured.
　請求項４に記載した本発明の電気接続箱によれば、カセットブロックがケーブル接続部の内面に重なる接続支持部を備えているので、当該接続支持部によりケーブル接続部を支持することができる。 According to the electrical connection box of the present invention described in claim 4, since the cassette block includes the connection support portion that overlaps the inner surface of the cable connection portion, the cable connection portion can be supported by the connection support portion.
　以上説明したように、請求項１に記載の本発明は、バスバに生じた熱がケーブル接続部に伝わり、外部にさらされることとなるので、バスバに生じた熱をケーブル接続部により外部に放熱することができる。 As described above, according to the first aspect of the present invention, the heat generated in the bus bar is transmitted to the cable connecting portion and exposed to the outside, and therefore the heat generated in the bus bar is radiated to the outside by the cable connecting portion. can do.
　請求項２に記載した本発明は、ケーブル接続部にブースタケーブルに接続された導電クランプなどを取り付けた際に、当該導電クランプの歯などが穴内に引っ掛かることとなるので、ケーブル接続部からブースタケーブルに接続された導電クランプなど脱落することを防止できる。 According to the second aspect of the present invention, when the conductive clamp connected to the booster cable is attached to the cable connecting portion, the teeth of the conductive clamp are caught in the hole. It is possible to prevent the conductive clamp connected to the terminal from falling off.
　請求項３に記載した本発明は、断面コ字形に形成してケーブル接続部の剛性を確保しているので、ケーブル接続部の厚みなどを抑制しても、当該ケーブル接続部の必要な剛性を確保できる。したがって、ケーブル接続部即ちバスバを構成する母材の削減を図ることができるとともに、ケーブル接続部即ちバスバの軽量化を図ることができる。 Since the present invention described in claim 3 is formed in a U-shaped cross section to ensure the rigidity of the cable connecting portion, the necessary rigidity of the cable connecting portion can be obtained even if the thickness of the cable connecting portion is suppressed. It can be secured. Therefore, it is possible to reduce the base material constituting the cable connection portion, that is, the bus bar, and to reduce the weight of the cable connection portion, that is, the bus bar.
　請求項４に記載した本発明は、カセットブロックの接続支持部がケーブル接続部を支持するので、ケーブル接続部の厚みなどを抑制しても、当該ケーブル接続部が不意に破損することを防止できる。したがって、ケーブル接続部即ちバスバを構成する母材の削減をより図ることができるとともに、ケーブル接続部即ちバスバの軽量化をより図ることができる。 In the present invention described in claim 4, since the connection support portion of the cassette block supports the cable connection portion, even if the thickness of the cable connection portion is suppressed, the cable connection portion can be prevented from being unexpectedly damaged. . Therefore, it is possible to further reduce the base material constituting the cable connection portion, that is, the bus bar, and to further reduce the weight of the cable connection portion, that is, the bus bar.
本発明の一実施形態にかかる電気接続箱のカセットブロックの斜視図である。It is a perspective view of the cassette block of the electrical junction box concerning one embodiment of the present invention. 図１に示されたカセットブロックの分解斜視図である。It is a disassembled perspective view of the cassette block shown by FIG. 図１に示されたカセットブロックの一部を断面で示す斜視図である。It is a perspective view which shows a part of cassette block shown by FIG. 1 in a cross section. 図２に示されたカセットブロックの一部を断面で示す斜視図である。It is a perspective view which shows a part of cassette block shown by FIG. 2 in a cross section. 図１に示されたカセットブロックのケーブル接続部をブースタケーブルの導電クランプが挟持した状態を示す斜視図である。It is a perspective view which shows the state which the electric clamp of the booster cable clamped the cable connection part of the cassette block shown by FIG. 図５中のＩＶ部を拡大して示す斜視図である。It is a perspective view which expands and shows the IV section in FIG. 図５に示されたブースタケーブルの全体を示す説明図である。It is explanatory drawing which shows the whole booster cable shown by FIG.
　以下、本発明の一実施形態にかかる電気接続箱を、図１ないし図７を参照して説明する。本実施形態にかかる図１に示す電気接続箱１は、移動体としての自動車に搭載される。 Hereinafter, an electrical junction box according to an embodiment of the present invention will be described with reference to FIGS. The electrical junction box 1 shown in FIG. 1 according to the present embodiment is mounted on an automobile as a moving body.
　電気接続箱１は、図１及び図２に示すように、図示しない箱本体と、カセットブロック２と、バスバ３とを備えている。箱本体は、箱状の本体部と、アッパカバーと、ロアカバーとを備えている。本体部と、アッパカバーと、ロアカバーとは、それぞれ、絶縁性の合成樹脂で構成され、周知の射出成型によって成型される。本体部１２は、互いに連なる複数の外壁により筒状に形成されている。また、本体部には、該本体部内を仕切る隔壁が設けられている。 As shown in FIGS. 1 and 2, the electrical connection box 1 includes a box body, a cassette block 2 and a bus bar 3 (not shown). The box main body includes a box-shaped main body, an upper cover, and a lower cover. The main body, the upper cover, and the lower cover are each made of an insulating synthetic resin, and are molded by a well-known injection molding. The main body 12 is formed in a cylindrical shape by a plurality of outer walls that are continuous with each other. Further, the main body portion is provided with a partition wall for partitioning the main body portion.
　アッパカバーと、ロアカバーとは、箱本体に取り付けられて、当該箱本体の上面及び仮面を覆う。 The upper cover and the lower cover are attached to the box body and cover the upper surface and the mask of the box body.
　カセットブロック２は、本体部内に収容可能な大きさの箱状に形成されている。カセットブロック２は、本体部の下方側の開口を通して、本体部内に収容される。カセットブロック２の図１中下方側の表面（以下、下面と呼ぶ）には、図示しないワイヤハーネスのコネクタが嵌合する。該ワイヤハーネスは、勿論、複数の電線と、該電線の端末に取り付けられたコネクタ等を備えている。 The cassette block 2 is formed in a box shape that can be accommodated in the main body. The cassette block 2 is accommodated in the main body through an opening on the lower side of the main body. A connector of a wire harness (not shown) is fitted on a lower surface (hereinafter referred to as a lower surface) of the cassette block 2 in FIG. The wire harness, of course, includes a plurality of electric wires and a connector attached to the end of the electric wires.
　また、カセットブロック２の図１中の上方側の表面（以下、上面と呼ぶ）２ａには、電気部品としてのリレー４や図示しないヒューズ等が装着される。さらに、カセットブロック２の上面２ａには、端子取付部５が設けられている。端子取付部５は、カセットブロック２の上面２ａに埋設された図示しないナットと、このナットに重ねられた板金部材６と、この板金部材６に設けられた貫通孔を通して当該ナットにねじ込まれるボルト７とを備えている。 Further, a relay 4 as an electrical component, a fuse (not shown), and the like are mounted on the upper surface (hereinafter referred to as the upper surface) 2a of the cassette block 2 in FIG. Further, a terminal mounting portion 5 is provided on the upper surface 2 a of the cassette block 2. The terminal mounting portion 5 includes a nut (not shown) embedded in the upper surface 2 a of the cassette block 2, a sheet metal member 6 stacked on the nut, and a bolt 7 screwed into the nut through a through hole provided in the sheet metal member 6. And has.
　端子取付部５は、板金部材６上に電源としてのバッテリと接続された端子金具の電気接触部が重ねられ、かつボルト７が電気接触部に設けられた切り欠きと板金部材６に設けられた貫通孔とを通ってナットに螺合することで、端子金具の電気接触部を板金部材６とボルト７の頭２３ａとの間に挟んで、該端子金具を取り付ける。 The terminal attachment portion 5 is provided on the sheet metal member 6 with a notch provided on the electric contact portion and a notch provided on the electric contact portion of the terminal fitting connected to the battery as a power source on the sheet metal member 6. By screwing into the nut through the through hole, the electric contact portion of the terminal fitting is sandwiched between the sheet metal member 6 and the head 23a of the bolt 7, and the terminal fitting is attached.
　さらに、カセットブロック２は、図４に示すように、接続支持部２２を一体に備えている。接続支持部２２は、カセットブロック２の上面２ａから立設した帯板状に形成されている。カセットブロック２にバスバ３が取り付けられると、接続支持部２２は、ケーブル接続部９の内面に密に重なって、当該ケーブル接続部９を支持する。なお、ケーブル接続部９の内面とは、後述する一対の平行板部２１の互いに相対する表面と、後述する接続板部２０の前記一対の平行板部２１間に位置付けられる表面とで構成されている。 Furthermore, the cassette block 2 is integrally provided with a connection support portion 22 as shown in FIG. The connection support portion 22 is formed in a band plate shape standing from the upper surface 2 a of the cassette block 2. When the bus bar 3 is attached to the cassette block 2, the connection support part 22 overlaps the inner surface of the cable connection part 9 and supports the cable connection part 9. In addition, the inner surface of the cable connection portion 9 is configured by a mutually facing surface of a pair of parallel plate portions 21 described later and a surface positioned between the pair of parallel plate portions 21 of the connection plate portion 20 described later. Yes.
　バスバ３は、導電性の板金に打ち抜き加工や曲げ加工が施されて得られる。バスバ３は、図１中下方からカセットブロック２に設けられたスリット内に挿入されて、当該カセットブロック２に取り付けられる。バスバ３は、複数の端子部８と、一つのケーブル接続部９とを一体に備えている。 The bus bar 3 is obtained by punching or bending a conductive sheet metal. The bus bar 3 is inserted into a slit provided in the cassette block 2 from below in FIG. The bus bar 3 is integrally provided with a plurality of terminal portions 8 and one cable connection portion 9.
　端子部８には、前述したリレー４やヒューズなどの端子が取り付けられる。バスバ３は、端子部８に前述したリレー４やヒューズなどの端子が取り付けられることにより、これらリレー４やヒューズ同士即ち複数の電気部品同士を電気的に接続する。 Terminals 8 such as the relays 4 and fuses described above are attached. The bus bar 3 is electrically connected between the relays 4 and the fuses, that is, a plurality of electrical components, by attaching the terminals such as the relay 4 and the fuses described above to the terminal portion 8.
　また、バスバ３は、前述したワイヤハーネスのコネクタ内に端子金具と、前記端子取付部５の板金部材とも接続する。そして、バスバ３は、ワイヤハーネスのコネクタの端子金具と、リレー４やヒューズ等の電気部品と、前述した端子取付部５の板金部材６等とを接続する。カセットブロック２は、前述したリレー４やヒューズ等の電気部品と、ワイヤハーネスの電線と、前述した端子取付部５を介してバッテリとを予め定められたパターンにしたがって、電気的に接続する。こうして、バスバ３は、電源からの電力をリレー４やヒューズ等を介して、自動車に搭載される各種の電子機器に供給する。 The bus bar 3 is also connected to the terminal fitting and the sheet metal member of the terminal mounting portion 5 in the connector of the wire harness described above. The bus bar 3 connects the terminal fittings of the connector of the wire harness, the electrical components such as the relay 4 and the fuse, and the sheet metal member 6 of the terminal mounting portion 5 described above. The cassette block 2 electrically connects the above-described electrical components such as the relay 4 and the fuse, the electric wire of the wire harness, and the battery via the above-described terminal mounting portion 5 according to a predetermined pattern. In this way, the bus bar 3 supplies power from the power source to various electronic devices mounted on the automobile via the relay 4 and the fuse.
　ケーブル接続部９は、バスバ３の図２中手前側の一方の端部から立設している。ケーブル接続部９は、図１に示すように、バスバ３がカセットブロック２に取り付けられると、このカセットブロック２の上面２ａから当該カセットブロック２の外側に露出するとともに、図３に示すように、接続支持部２の外側に密に重なる。ケーブル接続部９は、前記バスバ３の図２中手前側の一方の端部から立設した平板状に形成されかつ穴としての貫通孔１７が複数形成された接続板部２０と、この接続板部２０の幅方向の両縁から折り曲げられて互いに平行に設けられた一対の平行板部２１とを一体に備えて、断面コ字形に形成されている。貫通孔１７は、勿論、ケーブル接続部９の表面から凹に形成されており、図示例では、ケーブル接続部９を貫通している。 The cable connecting portion 9 is erected from one end of the bus bar 3 on the near side in FIG. As shown in FIG. 1, when the bus bar 3 is attached to the cassette block 2, the cable connecting portion 9 is exposed to the outside of the cassette block 2 from the upper surface 2a of the cassette block 2, and as shown in FIG. It closely overlaps the outside of the connection support part 2. The cable connecting portion 9 is formed in a flat plate shape standing from one end of the bus bar 3 on the near side in FIG. 2 and has a connecting plate portion 20 formed with a plurality of through holes 17 as holes, A pair of parallel plate portions 21 that are bent from both edges in the width direction of the portion 20 and provided in parallel to each other are integrally provided, and formed in a U-shaped cross section. Of course, the through-hole 17 is formed in a concave shape from the surface of the cable connection portion 9, and penetrates the cable connection portion 9 in the illustrated example.
　ケーブル接続部９は、図５に示すように、ブースタケーブル１０の端末に設けられた後述する導電クランプ１１に接続板部２０が挟持されて、当該ブースタケーブル１０が接続される。ケーブル接続部９は、接続板部２０が導電クランプ１１に挟持されると、貫通孔１７内に導電クランプ１１の歯１６が侵入する。 As shown in FIG. 5, the cable connection portion 9 is connected to the booster cable 10 by sandwiching the connection plate portion 20 with a conductive clamp 11 (described later) provided at the end of the booster cable 10. In the cable connection portion 9, when the connection plate portion 20 is sandwiched between the conductive clamps 11, the teeth 16 of the conductive clamps 11 enter the through holes 17.
　ブースタケーブル１０は、両方の端末に導電クランプ１１を取り付けている。導電クランプ１１は、図７に示すように、一対の挟み片１２と、一対の挟み片１２を互いに回動可能に連結したピン１３と、図示しないスプリングと、を備えている。一対の挟み片１２は、それぞれ、絶縁性の素材で形成された握り部１４と、導電性の部材で構成された刃部１５とを備えている。挟み片１２は、ピン１３により、握り部１４同士即ち刃部１５同士が互いに接離するように、回転自在に連結されている。刃部１５には、挟み片１２同士が近づく方向に突出した歯１６が複数設けられている。スプリングは、刃部１５同士が互いに近づきかつ握り部１４同士が互いに離れる方向に、一対の挟み片１２を付勢している。 The booster cable 10 has conductive clamps 11 attached to both terminals. As shown in FIG. 7, the conductive clamp 11 includes a pair of sandwiching pieces 12, a pin 13 that connects the pair of sandwiching pieces 12 in a rotatable manner, and a spring (not shown). Each of the pair of sandwiching pieces 12 includes a grip portion 14 made of an insulating material and a blade portion 15 made of a conductive member. The pinching pieces 12 are rotatably connected by pins 13 so that the grip portions 14, that is, the blade portions 15 are in contact with each other. The blade portion 15 is provided with a plurality of teeth 16 protruding in a direction in which the sandwiching pieces 12 approach each other. The spring biases the pair of sandwich pieces 12 in a direction in which the blade portions 15 approach each other and the grip portions 14 separate from each other.
　ブースタケーブル１０は、前述したバッテリの電力が略零即ち所謂バッテリが上がった際に、一方の導電クランプ１１が、図６に示すように、ケーブル接続部９の接続板部２０を挟持し、他方の導電クランプ１１が外部の電源の端子を挟持する。そして、ブースタケーブル１０は、前述した外部の電源の電力を、ワイヤハーネスに接続した自動車に搭載された各種の電子機器に供給する。 In the booster cable 10, when the battery power is substantially zero, that is, when the so-called battery is raised, one conductive clamp 11 holds the connection plate portion 20 of the cable connection portion 9 as shown in FIG. The conductive clamp 11 holds the terminal of the external power supply. And the booster cable 10 supplies the electric power of the external power supply mentioned above to the various electronic devices mounted in the motor vehicle connected to the wire harness.
　前述した構成の電気接続箱１は、以下のように組み立てられる。まず、箱本体の本体部に各カセットブロック２を取り付ける。そして、各カセットブロック２の上面２ａにリレー４やヒューズ等の電気部品を装着するとともに、下面にワイヤハーネスのコネクタを嵌合させる。 The electrical junction box 1 having the above-described configuration is assembled as follows. First, each cassette block 2 is attached to the main body of the box body. Then, electrical components such as a relay 4 and a fuse are mounted on the upper surface 2a of each cassette block 2, and a wire harness connector is fitted on the lower surface.
　その後、本体部にロアカバーを取り付ける。そして、バッテリと接続された端子金具の電気接触部の前述した切り欠き内に端子取付部５のボルト７を通して、板金部材６に端子金具の電気接触部を重ねて、当該ボルト７を締め付ける。そして、アッパカバーを本体部に取り付ける。 After that, attach the lower cover to the main body. Then, the bolt 7 of the terminal mounting portion 5 is passed through the aforementioned notch of the electrical contact portion of the terminal fitting connected to the battery, the electrical contact portion of the terminal fitting is overlapped on the sheet metal member 6, and the bolt 7 is tightened. And an upper cover is attached to a main-body part.
　そして、電気接続箱１は、自動車に搭載される。そして、電気接続箱１は、ワイヤハーネスが接続した自動車の電子機器と、リレー４やヒューズ等の電気部品と、前述したバッテリとを、予め定められたパターンにしたがって、互いに電気的に接続する。 And the electric junction box 1 is mounted on a car. The electrical junction box 1 electrically connects the automobile electronic device to which the wire harness is connected, the electrical components such as the relay 4 and the fuse, and the battery described above according to a predetermined pattern.
　本実施形態によれば、バスバ３が外部に露出して配置されるケーブル接続部９と一体に形成されているので、このバスバ３に生じた熱がケーブル接続部９に伝わり、外部にさらされることとなる。したがって、バスバ３に生じた熱をケーブル接続部９により外部に放熱することができる。 According to the present embodiment, since the bus bar 3 is formed integrally with the cable connection portion 9 that is disposed so as to be exposed to the outside, the heat generated in the bus bar 3 is transmitted to the cable connection portion 9 and exposed to the outside. It will be. Therefore, the heat generated in the bus bar 3 can be radiated to the outside by the cable connecting portion 9.
　ケーブル接続部９に貫通孔１７が複数設けられているので、このケーブル接続部９にワニ型の導電クランプ１１などを取り付けた際に、当該導電クランプ１１の歯１６などが貫通孔１７内に引っ掛かることとなる。したがって、ケーブル接続部９からブースタケーブル１０に接続された導電クランプ１１など脱落することを防止できる。 Since a plurality of through holes 17 are provided in the cable connecting portion 9, when the crocodile type conductive clamp 11 or the like is attached to the cable connecting portion 9, the teeth 16 of the conductive clamp 11 are caught in the through hole 17. It will be. Therefore, it is possible to prevent the conductive clamp 11 connected to the booster cable 10 from dropping from the cable connecting portion 9.
　また、断面コ字形に形成して、ケーブル接続部９の剛性を確保しているので、当該ケーブル接続部９の厚みなどを抑制しても、当該ケーブル接続部９の必要な剛性を確保できる。したがって、ケーブル接続部９即ちバスバ３を構成する母材の削減を図ることができるとともに、ケーブル接続部９即ちバスバ３の軽量化を図ることができる。 Also, since the rigidity of the cable connection portion 9 is ensured by forming a U-shaped cross section, the necessary rigidity of the cable connection portion 9 can be ensured even if the thickness of the cable connection portion 9 is suppressed. Therefore, it is possible to reduce the base material constituting the cable connection portion 9, that is, the bus bar 3, and to reduce the weight of the cable connection portion 9, that is, the bus bar 3.
　さらに、カセットブロック２がケーブル接続部９の内面に重なる接続支持部２２を備えているので、カセットブロック２の接続支持部２２がケーブル接続部９を支持することとなる。このために、ケーブル接続部９の厚みなどを抑制しても、当該ケーブル接続部／が不意に破損することを防止できる。したがって、ケーブル接続部９即ちバスバ３を構成する母材の削減をより図ることができるとともに、ケーブル接続部９即ちバスバ３の軽量化をより図ることができる。 Furthermore, since the cassette block 2 includes the connection support portion 22 that overlaps the inner surface of the cable connection portion 9, the connection support portion 22 of the cassette block 2 supports the cable connection portion 9. For this reason, even if the thickness of the cable connection portion 9 is suppressed, the cable connection portion / can be prevented from being unexpectedly damaged. Therefore, it is possible to further reduce the base material constituting the cable connection portion 9, that is, the bus bar 3, and to further reduce the weight of the cable connection portion 9, that is, the bus bar 3.
　前述した実施形態では、穴として貫通孔１７を用いたが、本発明では、穴として、ケーブル接続部９の表面から凹の凹部を用いても良い。即ち、穴が、ケーブル接続部９を貫通していなくても、勿論、良い。 In the above-described embodiment, the through hole 17 is used as the hole. However, in the present invention, a concave portion that is concave from the surface of the cable connection portion 9 may be used as the hole. That is, of course, it is good even if the hole does not penetrate the cable connecting portion 9.
　なお、前述した実施形態は本発明の代表的な形態を示したに過ぎず、本発明は、実施形
態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。 In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.
　１　電気接続箱
　２　カセットブロック
　３　バスバ
　４　リレー（電気部品）
　９　ケーブル接続部
　１７　貫通孔（穴）
　２０　接続板部
　２１　平行板部
　２２　接続支持部 1 Electrical junction box 2 Cassette block 3 Bus bar 4 Relay (electrical part)
9 Cable connection 17 Through hole (hole)
20 Connection plate part 21 Parallel plate part 22 Connection support part

Claims (4)

  1. 　複数の電気部品が取り付けられるカセットブロックと、
    　前記カセットブロックに取り付けられかつ前記複数の電気部品同士を電気的に接続する導電性のバスバと、
    　前記カセットブロックの外側に露出した状態で配置されかつブースタケーブルが接続されるケーブル接続部と、を備えた電気接続箱において、
    　前記ケーブル接続部が、前記バスバと一体に形成されたことを特徴とする電気接続箱。     A cassette block to which a plurality of electrical components can be attached;
    A conductive bus bar attached to the cassette block and electrically connecting the plurality of electrical components;
    In an electrical junction box comprising: a cable connection portion that is arranged in an exposed state outside the cassette block and to which a booster cable is connected;
    The electrical connection box, wherein the cable connection portion is formed integrally with the bus bar.
  2. 　前記ケーブル接続部に、当該ケーブル接続部の表面から凹の穴が複数形成されていることを特徴とする請求項１記載の電気接続箱。 The electrical connection box according to claim 1, wherein a plurality of concave holes are formed in the cable connection portion from the surface of the cable connection portion.
  3. 　前記ケーブル接続部は、前記穴が複数形成された接続板部と、この接続板部の両縁から折り曲げられて互いに平行な一対の平行板部と、を備えて、断面コ字形に形成されていることを特徴とする請求項２記載の電気接続箱。 The cable connection portion includes a connection plate portion in which a plurality of the holes are formed and a pair of parallel plate portions that are bent from both edges of the connection plate portion and are parallel to each other. The electrical junction box according to claim 2, wherein
  4. 　前記カセットブロックは、前記ケーブル接続部の内面に重なる接続支持部を備えたことを特徴とする請求項３記載の電気接続箱。 The electrical junction box according to claim 3, wherein the cassette block includes a connection support portion that overlaps an inner surface of the cable connection portion.
PCT/JP2009/064648 2008-10-08 2009-08-21 Electrical connection box WO2010041521A1 (en)

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JP2008261903A JP2010093955A (en) 2008-10-08 2008-10-08 Electrical junction box
JP2008-261903 2008-10-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013223367A (en) * 2012-04-18 2013-10-28 Yazaki Corp Electric connection box
US20160020536A1 (en) * 2014-07-18 2016-01-21 Yazaki Corporation Booster cable holding structure
DE102011081307B4 (en) 2010-09-14 2020-06-18 Sumitomo Wiring Systems, Ltd. Electrical distribution box

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Publication number Priority date Publication date Assignee Title
JP5682784B2 (en) * 2011-07-25 2015-03-11 住友電装株式会社 Electrical junction box
JP6131495B2 (en) * 2013-06-25 2017-05-24 矢崎総業株式会社 Booster cable holding structure
JP6323902B2 (en) * 2014-03-05 2018-05-16 矢崎総業株式会社 Electrical junction box
JP7160708B2 (en) * 2019-02-05 2022-10-25 矢崎総業株式会社 Clip connection structure, electric connection box, and wire harness

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JP2004134215A (en) * 2002-10-10 2004-04-30 Yazaki Corp Conductive member for electric feeding and feeding block having the same
JP2007330054A (en) * 2006-06-08 2007-12-20 Sumitomo Wiring Syst Ltd Electrical connection box

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JP3038539U (en) * 1996-12-06 1997-06-20 株式会社明工社 Ground terminal for medical equipment
JP2004134215A (en) * 2002-10-10 2004-04-30 Yazaki Corp Conductive member for electric feeding and feeding block having the same
JP2007330054A (en) * 2006-06-08 2007-12-20 Sumitomo Wiring Syst Ltd Electrical connection box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081307B4 (en) 2010-09-14 2020-06-18 Sumitomo Wiring Systems, Ltd. Electrical distribution box
JP2013223367A (en) * 2012-04-18 2013-10-28 Yazaki Corp Electric connection box
US20160020536A1 (en) * 2014-07-18 2016-01-21 Yazaki Corporation Booster cable holding structure
US9592778B2 (en) * 2014-07-18 2017-03-14 Yazaki Corporation Booster cable holding structure

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